1 /* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef WebCommonWorkerClient_h 32 #define WebCommonWorkerClient_h 33 34 #include "WebCommon.h" 35 #include "WebFileSystem.h" 36 37 namespace WebKit { 38 39 class WebApplicationCacheHost; 40 class WebApplicationCacheHostClient; 41 class WebFrame; 42 class WebNotificationPresenter; 43 class WebString; 44 class WebWorker; 45 class WebWorkerClient; 46 47 // Provides an interface back to the in-page script object for a worker. 48 // This interface contains common APIs used by both shared and dedicated 49 // workers. 50 // All functions are expected to be called back on the thread that created 51 // the Worker object, unless noted. 52 class WebCommonWorkerClient { 53 public: 54 virtual void postExceptionToWorkerObject( 55 const WebString& errorString, int lineNumber, 56 const WebString& sourceURL) = 0; 57 58 // FIXME: the below is for compatibility only and should be 59 // removed once Chromium is updated to remove message 60 // destination parameter <http://webkit.org/b/37155>. 61 virtual void postConsoleMessageToWorkerObject(int, int sourceIdentifier, int messageType, int messageLevel, 62 const WebString& message, int lineNumber, const WebString& sourceURL) = 0; 63 postConsoleMessageToWorkerObject(int sourceIdentifier,int messageType,int messageLevel,const WebString & message,int lineNumber,const WebString & sourceURL)64 virtual void postConsoleMessageToWorkerObject(int sourceIdentifier, int messageType, int messageLevel, 65 const WebString& message, int lineNumber, const WebString& sourceURL) 66 { 67 postConsoleMessageToWorkerObject(0, sourceIdentifier, messageType, messageLevel, 68 message, lineNumber, sourceURL); 69 } 70 71 virtual void workerContextClosed() = 0; 72 virtual void workerContextDestroyed() = 0; 73 74 // Returns the notification presenter for this worker context. Pointer 75 // is owned by the object implementing WebCommonWorkerClient. 76 virtual WebNotificationPresenter* notificationPresenter() = 0; 77 78 // This can be called on any thread to create a nested WebWorker. 79 // WebSharedWorkers are not instantiated via this API - instead 80 // they are created via the WebSharedWorkerRepository. 81 virtual WebWorker* createWorker(WebWorkerClient* client) = 0; 82 83 // Called on the main webkit thread in the worker process during initialization. 84 virtual WebApplicationCacheHost* createApplicationCacheHost(WebApplicationCacheHostClient*) = 0; 85 86 // Called on the main webkit thread before opening a web database. 87 virtual bool allowDatabase(WebFrame*, const WebString& name, const WebString& displayName, unsigned long estimatedSize) = 0; 88 89 // Called on the main webkit thread before opening a file system. openFileSystem(WebFileSystem::Type,long long size,bool create,WebFileSystemCallbacks *)90 virtual void openFileSystem(WebFileSystem::Type, long long size, bool create, WebFileSystemCallbacks*) 91 { 92 WEBKIT_ASSERT_NOT_REACHED(); 93 } 94 95 protected: ~WebCommonWorkerClient()96 ~WebCommonWorkerClient() { } 97 }; 98 99 } // namespace WebKit 100 101 #endif 102